DAILY GRAPES
As The World Turns…
Over the years, gardening has made me more and more aware of our planet’s annual track around the sun. How quaint. It gives me a certain kinship with the peasants at work in the 15th century painting for the month of September of Les Très Riches Heures de Duc de Berry.
Picking grapes, 15th and 21st century
As with those peasants, September is a month when I have abundant fruits for harvest. Like the peasants, I’m harvesting grapes; it’s been a bumper year. Unlike the peasants, my grapes are destined for fresh eating rather than being sullied by fermentation into wine. (Okay, okay, just kidding, although I am not a fan of drinking wine.)
First to ripen here were the varieties Somerset Seedless and Alden. With an abundance of varieties and fruits, I can afford to be picky, so this will be the last season here for Somerset Seedless. It’s too prone to pest problems and the fruit never loses enough of its tannin-y taste for my palate.
Alden grape
Alden is also threatened with my saw and shovel because it bears lightly and is also plagued with pest problems. But excellent taste and texture make it worth keeping.
Following on the heals of those earlier varieties are Swenson Red, Lorelei, Glenora, and Vanessa. The latter two are very good but would not be worth keeping if they weren’t seedless. In my experience, the most flavorful grapes are those with seeds. Swenson’s Red is a variety that pretty much everyone loves. They’d also love Lorelei if they got to taste this not very common variety.
Finally come Edelweiss, Wapanuka, Brianna, and, bearing for the first time, Cayuga White. The first three are not yet quite ripe. Even at this stage, they are delectable. Cayuga White is still proving itself, or not.
Edelweiss
Looking to the future, newly planted Bluebell, Alpenglow, and Dr. Goode should yield a few berries next year. Also an unknown variety that I propagated from an old vine growing at a friend’s Orchard.
With their bold flavors, you’re not likely to find any of the varieties I mentioned at a supermarket, possibly even a farmer’s market. Plant them!
Variety Choices
A few caveats: The Wallkill River Valley, site of my farmden, is far from ideal for fruit growing. As a valley, it’s colder than surrounding land (zone 5) and is laden with damper air that encourages disease. An abundance of wild grapevines in the bordering 6000 acres of forest provides a place for insects and disease to get their start.
Nonetheless, I get good crops without resorting to sprays. This is possible by providing a sunny site with good air circulation and making the best of it with trellises, and — very important — annual pruning. Also by choosing varieties to plant based on pest, disease, and cold resistance.
Many grape varieties are hybrids of European and American species, the Europeans chosen for their flavor (flavor, that is, from a Eurocentric perspective), the Americans for their toughness to pests and more rigorous growing conditions. American varieties have a unique flavor, called foxiness and typified by that of Concord, as well as a slip skin. European varieties are sweet with a crunchy texture.
As far as flavor and texture, varieties span the spectrum from those that are more like European grapes to those more like American grapes. My final, but very important, consideration in choosing a variety is flavor, and I mostly prefer the flavors of varieties toward the American end of the spectrum.
Of course, the choice widens for grape enthusiasts in more Mediterranean climates, where European varieties can also be grown, and in the Southeast, where the native muscadine grapes grow wild and are cultivated.
Bagging, for Pests
Many birds and insects, especially yellow jackets and European hornets, also enjoy my grapes. They leave plenty for me, but crucial to harvesting the best of the best tasting grapes here is bagging.
Years ago I figured that the longer a bunch of grapes hangs on the plant, the tastier it gets (to a point), but also the more chance of attack by insects and birds. So I bought 1000 bakery bags that happened to have “Wholesome Fresh Delicious Baked Goods” printed on them. 
Perhaps the label made the bags even less attractive to grape-hungry birds and insects; at any rate, they worked very well, usually yielding almost 100 late harvest, delectably sweet and flavorful, perfect bunches of bagged grapes each year.
This year, I thought organza bags might work well. 
Organza is an open weave fabric often made from synthetic fiber. Small organza bags typically enclose wedding favors; the bags come in many sizes. Organza bags have the advantage over paper bags of letting in more light. A mere pull of the two drawstrings makes bagging the fruit very easy; paper bags involve cutting, folding, and stapling. Organza bags also re-usable. (The bags also work well with apples which, in contrast to grapes, require sunlight to color up.)
In the15th century painting, peasants just pile bunches of their grapes into large, wooden tubs. I gently set only enough bunches for immediate consumption into a woven basket. Different methods, but we’re all tuned to the progress of our planet around its sun.
More details about growing grapes — and lots of other fruits — in my book Grow Fruit Naturally.
UPCOMING COMPOSTING WEBINAR/WORKSHOP
Presentation by Lee Reich (MS, PhD, researcher in soil and plants for the USDA and Cornell University, decade-long composter, and farmdener*):
Learn the why and the how of making a compost that grows healthy and nutritious plants, everything from designing an enclosure to what to add (and what not to add) to what can go wrong (and how to right it). Don’t bother stuffing old tomato stalks, grass clippings, and leaves into plastic bags; just compost them! The same goes for kitchen waste. Learn what free materials are available for composting. “Bring” your questions about this important topic.
Also covered will be the best ways to use your “gourmet compost.” Good compost is fundamental to good gardening; it put the “organic” into organic gardening, making healthy soil and healthy plants.
Whether your interest is to produce a material that’s good for your garden or to recycle kitchen and garden waste, this workshop will teach you all you need to know to make good compost.
Space for this workshop/webinar is limited so registration is necessary. Sign up soon to assure yourself a space.
Date: September 23, 2020
Time: 7-8:30 pm EST
Cost: $35
Register for this webinar at:
https://us02web.zoom.us/webinar/register/WN_XmctJm_9QLWlKmW4hK1Lhg
After registering, you will receive a confirmation email containing information about joining the webinar.
*A farmdener is more than a gardener and less than a farmer.
SICKNESS, MY CORN NOT ME
An Interesting Puzzle Unfolds
Sudoko and Scrabble and other games and puzzles offer endless hours of entertainment and stimulation. Or so I hear. I get those challenges and rewards from my garden. Case in point is a bed of sweet corn which has been stunted all season long and then last week, almost suddenly, all the plants’ leaves turn sickly as well. Needless to say, ears are developing poorly or not at all. Why, I asked?
I have to backtrack. Each year I plant 4 beds of corn, each about 20 feet long, which supplies plenty of ears for fresh eating and freezing. I spread out the harvest season by planting a new bed every two weeks after the previous planting. Each bed, like other beds in my vegetable gardens, is spread each year with a one-inch depth of compost to maintain fertility (as well as other benefits).
At first I thought perhaps there was a fertility problem with the stunted bed. But, as I wrote, all the beds get the same fertility treatment. Watering is also the same, via drip irrigation. And early-season Chinese cabbage plants sharing that bed with the corn look fine and healthy.
The suddenly sickly leaves were very telling, with yellow streaks that turned to tan, dead spots. It didn’t take long to nail down the cause to Stewart’s Wilt, also known as bacterial wilt. Two culprits are at work here. The first is a bacterium (Pantoea stewartii), which needs a friend to actually get inside and infect a corn plant. That friend is the corn flea beetle (Chaetocnema pulicaria). The beetles overwinter as adults, with the bacteria in their gut, and emerge in spring to feed on and infect corn plants. Seeds from infected plants can also grow up infected, although this is relatively rare.
Other evidence supports my finger-pointing. The corn flea beetle doesn’t tolerate cold weather well, making the disease more prevalent after milder winters. Check. Last winter was the warmest winter in decades. Stewart’s Wilt is also most prevalent in hot summers and dry summers. Check. Check. One of the most susceptible varieties is Golden Bantam, which I grow. Check.
Disease development on leaves
Fertility can play a role, with ammonium nitrogen and high phosphorus levels favoring the disease, and high calcium and potassium decreasing plant susceptibility. Probably not a factor; phosphorus level is high in my beds, as are levels of potassium and calcium. Based on growth in the rest of the garden, there’s no reason to suspect ammonium levels are too high.
Why This Year?
Putting a name to the problem is not the end of my puzzle.
One remaining question is why the one bed was so severely infected, and not the other three. Golden Bantam is an heirloom variety, with seed saved each year — for the past 100 plus years — from self-pollinated plants. Although basically the same, all Golden Bantam plants are not clones, that is, genetically identical. Slight differences could exist between “lines.” I had more than one source of Golden Bantam seed this year. I always assumed that all the Golden Bantams are sufficiently identical, so I never record which source or sources I planted in each bed. It could be that one bed was planted with seed of a more susceptible line.
Another possibility for the unique performance of the last bed could be that it’s development coincided with the flea beetle’s development such that it was rendered more susceptible. Earlier ripening corn generally is less susceptible than later ripening ones.
I’m tending toward the theory that this growing season presented a unique “perfect storm” of conditions that favored the disease.
Looking Forward
The most important part of solving this puzzle, of course, is: what to do? I don’t particularly like the flavor or texture of modern supersweet hybrids, even if many are wilt resistant. Some popular old varieties — Country Gentleman and Stowell Evergreen, for example — are wilt resistant. But — and not to be a picky eater — those varieties are white corns; I like yellow corns.
More than that, I like Golden Bantam sweet corn. This variety was the most popular variety early in the 20th century. Although the pathogen was identified by, of course, F. C. Stewart in Long Island, New York in 1895, not much could be done to control its devastating effects until resistant hybrids were developed. The first of these was bred from two lines of Golden Bantam, in 1923. It wasn’t long before 70 tp 80% of canned corn was of this variety, Golden Cross Bantam.
Golden Cross Bantam is still available today. The plants are sturdier, more productive, more uniform in ripening than Golden Bantam, and wilt resistant. I’ll plant it next year. (I may have accidentally grown it a few years ago. Given Golden Bantam’s popularity, “Bantam” was included in the names of many hybrids and genetic lines. For more about my experience see my blog post from September 1, 2016.) I hope Golden Cross Bantam, seed of which I already ordered, tastes as good as my original Golden Bantam.
I’ll also plant a few hills, labeled as to seed source, of the real Golden Bantam to see if Stewart’s disease appears and, if so, if severity varies between those sources.
Puzzle complete, till next year.
Golden Bantam, a hit since 1906
